Prove the following statements about the sets a, b and c. within your arguments, you may find it useful to argue directly and/or to use the contrapositive form. remember that to show that two sets are equal, we show that each one is a subset of the other; also remember that to show that s is a subset of t, we argue "let x , aha! therefore x et." (a) a n (b \ c) = (an b) \ (a n c) (b) (aub)\(anb)= (a \ b) u (b \ a)

Given are five observations for two variables, x and y. xi 1 2 3 4 5 yi 3 7 5 11 14 which of the following is a scatter diagrams accurately represents the data? what does the scatter diagram developed in part (a) indicate about the relationship between the two variables? try to approximate the relationship betwen x and y by drawing a straight line through the data. which of the following is a scatter diagrams accurately represents the data? develop the estimated regression equation by computing the values of b 0 and b 1 using equations (14.6) and (14.7) (to 1 decimal). = + x use the estimated regression equation to predict the value of y when x = 4 (to 1 decimal). =